JPS57212212A - Preparation of vinyl chloride resin - Google Patents
Preparation of vinyl chloride resinInfo
- Publication number
- JPS57212212A JPS57212212A JP9727381A JP9727381A JPS57212212A JP S57212212 A JPS57212212 A JP S57212212A JP 9727381 A JP9727381 A JP 9727381A JP 9727381 A JP9727381 A JP 9727381A JP S57212212 A JPS57212212 A JP S57212212A
- Authority
- JP
- Japan
- Prior art keywords
- cooling water
- condenser
- polymerization
- vinyl chloride
- polymerizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To prevent the permeation of suspension to the interior of a condenser, by using cooling water, hot water and steam in the cooling water side of the condenser, carrying out suspension polymerization for vinyl choride resin while suppressing the foaming in a polymerizer by controlling the cooling water, hot water, and steam.
CONSTITUTION: Cooling water, hot water, and steam are used in the cooling water side of a condenser attached to a polymerizer, and the temperature of the cooling water side is previously kept higher than polymerization temperature. The polymerizer is charged with pure water, a polymerization initiator (e.g., lauroyl peroxide), a dispersant (e.g., partially saponified polyvinyl alcohol), and vinyl chloride or a vinyl monomer (e.g., ethylene) mixture consisting essentially of it, polymerization is started, and the feed of the cooling water is started. After the middle stage of the polymerization, the feed of the cooling water to the condenser is regulated, to give vinyl chloride resin.
EFFECT: The formation of scale in the interior of the pipe and condenser is prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727381A JPS57212212A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
KR8202721A KR860001114B1 (en) | 1981-06-22 | 1982-06-18 | A method for production of vinyl chloride resin |
GB08217773A GB2101614A (en) | 1981-06-22 | 1982-06-18 | Production of vinyl chloride resin |
DE19823223262 DE3223262A1 (en) | 1981-06-22 | 1982-06-22 | METHOD FOR PRODUCING VINYL CHORIDE RESIN |
US06/390,845 US4455413A (en) | 1981-06-22 | 1982-06-22 | Method for suppressing bubbling in polymerization of vinyl chloride resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727381A JPS57212212A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57212212A true JPS57212212A (en) | 1982-12-27 |
Family
ID=14187912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9727381A Pending JPS57212212A (en) | 1981-06-22 | 1981-06-22 | Preparation of vinyl chloride resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57212212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04110301A (en) * | 1990-08-31 | 1992-04-10 | Shin Etsu Chem Co Ltd | Production of vinyl chloride polymer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5426890A (en) * | 1977-08-02 | 1979-02-28 | Nippon Zeon Co Ltd | Preparation of vinyl chloride resin |
-
1981
- 1981-06-22 JP JP9727381A patent/JPS57212212A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5426890A (en) * | 1977-08-02 | 1979-02-28 | Nippon Zeon Co Ltd | Preparation of vinyl chloride resin |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04110301A (en) * | 1990-08-31 | 1992-04-10 | Shin Etsu Chem Co Ltd | Production of vinyl chloride polymer |
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